Jump to content
SAU Community

Recommended Posts

Thats why its called 1KG actuator. Once boost controller removed it should stay around 10psi. You can also play with the actuator's pre-load to alter boost settings.

Thats why its called 1KG actuator. Once boost controller removed it should stay around 10psi. You can also play with the actuator's pre-load to alter boost settings.

Boost controller has been turned off. Which way do i adjust to lower boost? Not keen on 1Bar until injectors are sorted

Stao, what if any are the differences between your GT3076 with your .82 rear and the Garrett original version? I realise you use a different exhaust housing and that it's a direct fit, but does the turbo have any less potential due to the compressor housing?

Stao, what if any are the differences between your GT3076 with your .82 rear and the Garrett original version? I realise you use a different exhaust housing and that it's a direct fit, but does the turbo have any less potential due to the compressor housing?

+1 good question

Just direct vacuum straight into the actuator with no boost controller. You should see a drop in boost curve.

GT3076 is a Original Garrett Item. We use them in our turbo builts, high flows and overhauls depends on customers request. Most of our turbochargers are built in sleeve bearing setup which is some thing that is equivalent to produces similar end result.

Garrett does not have IW housings that made to suit RB25det OEM engine setup. Ours is a custom made housing which is in the same Air ratio but with OEM RB25det Bolton pattern.

stao would you be able to hiflow a 2IU to HKS GTRS or 2835 spec?

I would be interested to know if its possible also to do a hiflow with 3076 internals and a matching front housing size that would perform similarly as well... is it possible to modify the RB rear housing in a way that is as effective as the original garrett IW housing in this scenario? in a way that does not require cropping of the exhaust wheel and that does not have the exhaust wheel pertruding out the rear port of the turbo (therefore blocked by the housing)

it would be great if you could clear these up for me Stao, thanks

We can build a 2871 equivalent CHRA in a customized T3x .64 turbine housing with 6 bolt dump. Should make similar sort of power and response.

Garrett does not have IW housings that made to suit RB25det OEM engine setup. Ours is a custom made housing which is in the same Air ratio but with OEM RB25det Bolton pattern.

They actually do now: NEW!! RB Nissan Special Garrett GT3076R ball bearing turbo

Bottom of page 2:

http://horsepowerinabox.com/HPIAB2/category12_2.htm

Although, GCG do not like it and say that the standard skyline flange is too restrictive for the GT3076R and causes boost spiking etc.

This is from a Friend's 95 R33 running a ATR45 600HP turbo in .50 comp and .82 turbine internally gated using a high pressure actuator.

fully stock RB25det engine, 550cc injectors, cooler, Nistune chiped Z32 ECU , and 3inch turbo back exhaust. Tuned at 399rwHP @ 18psi.

It hits 18psi at 4800RPM. Not the most responsive turbo, But it certainly can do lot more then 300rwkws.

298rwkwrb25dets.jpg

This is from a Friend's 95 R33 running a ATR45 600HP turbo in .50 comp and .82 turbine internally gated using a high pressure actuator.

fully stock RB25det engine, 550cc injectors, cooler, Nistune chiped Z32 ECU , and 3inch turbo back exhaust. Tuned at 399rwHP @ 18psi.

It hits 18psi at 4800RPM. Not the most responsive turbo, But it certainly can do lot more then 300rwkws.

Hi,

Sorry, I know you've probably been asked this question too many times to count, but I read a few pages ago a quote from you saying something like "We can build you a turbo to hit 280rwkw with excelent street response" from an RB25. I'm very interested in this, could you detail exactly what this would entail man? I've been reading through the thread but everything seems to change so often I thought I'd just ask you to see what was current.

This sounds awesome man, I just want to work out if I need to, and where to get dump pipes, and if my tuner's happy tuning this (I see no reason why he wouldn't be =]).

Cheers,

Tim

Edit: Obviously all the supporting mod's will already be factors, I'm just interested as to the specs of the turbo. Oh, and a price, if it's ok to post it here?

Edited by That_timothy

What does the 0.82 housing look like? Is it similar to the standard nissan one? Or is it obvious its aftermarket?

Will the standard heat shield still fit on?

Edited by Harey

The ATR43G3 is a 3076 56T equivalent turbo. in .82 turbine full boost at 4300RPM. Good for about 280rwkw with highpressure actautor internally gated. We can install a GT3076BB 56T CHRA for $450 additional.

The .82 turbine housing is a custom made housing in T3x print, with a 6 bolt OEM RB25's dump pattern.

The ATR43G3 is a 3076 56T equivalent turbo. in .82 turbine full boost at 4300RPM. Good for about 280rwkw with highpressure actautor internally gated. We can install a GT3076BB 56T CHRA for $450 additional.

The .82 turbine housing is a custom made housing in T3x print, with a 6 bolt OEM RB25's dump pattern.

Is it possible to get the ATR43G3 with a .63 rear?

As I was looking at getting either a 3071 or 3076 with a .63 rear.

Yes that'd be 1250 + 150 for the ATR43G3 with .82 housing and the high pressure actuator. + 10% GST and $80 oil feeding line. which is $1600 AUD.

Same profile In .63 turbine can get full boost around 3500RPM. But you need a external gate to hold it steady.

Boost curve in .63 turbine:

http://www.digi-hardware.com/images/dynosh...3boost15psi.jpg

Same profile In .63 turbine can get full boost around 3500RPM. But you need a external gate to hold it steady.

I'm only running an RB20 so would boost control still be an issue, as .82 rear on an rb20 would be a no go.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • There are advantages, and disadvantages to remapping the factory.   The factory runs billions of different maps, to account for sooooo many variables, especially when you bring in things like constantly variable cams etc. By remapping all those maps appropriately, you can get the car to drive so damn nicely, and very much so like it does from the factory. This means it can utilise a LOT of weird things in the maps, to alter how it drives in situations like cruise on a freeway, and how that will get your fuel economy right down.   I haven't seen an aftermarket ECU that truly has THAT MANY adjustable parameters. EG, the VAG ECUs are somewhere around 2,000 different tables for it to work out what to do at any one point in time. So for a vehicle being daily driven etc, I see this as a great advantage, but it does mean spending a bit more time, and with a tuner who really knows that ECU.   On the flip side, an aftermarket ECU, in something like a weekender, or a proper race car, torque based tuning IMO doesn't make that much sense. In those scenarios you're not out there hunting down stuff like "the best way to minimise fuel usage at minor power so that we can go from 8L/100km to 7.3L/100km. You're more worried about it being ready to make as much freaking power as possible when you step back on the loud pedal as you come out of turn 2, not waiting the extra 100ms for all the cams to adjust etc. So in this scenario, realistically you tune the motor to make power, based on the load. People will then play with things like throttle response, and drive by wire mapping to get it more "driveable".   Funnily enough, I was watching something Finnegans Garage, and he has a huge blown Hemi in a 9 second 1955 Chev that is road registered. To make it more driveable on the road recently, they started testing blocking up the intake with kids footballs, to effectively reduce air flow when they're on the road, and make the throttle less touchy and more driveable. Plus some other weird shit the yankee aftermarket ECUs do. Made me think of Kinks R34...
    • I do this, I also don't get the joke  
    • Return flow cooler will be killing you I reckon. You can certainly push more through a low mount setup but they're good numbers for a stock looking engine bay.  Mine made 345rwkw (hub) at 22psi on 98 with a "highflow" on a stock manifold but it's a long way from a normal high flow or standard engine. I used one of those Turbosmart IWG-75's and it was great with the Motec running closed loop boost with pressure being applied to both sides of the diaphragm. 
    • Hey man do you have pic of adaptor plate by any chance I need to match up the bolt holes as my gearbox adaptor plate ones are way off the only bolts of starter motor are matching thanks 
    • Do they always do it from the AFM? If so... You know what I'm already thinking I reckon...
×
×
  • Create New...